In 1910 a great missionary conference was held in Edinburgh, Scotland, where Americans, Europeans, and missionaries from around the world strategized for the worldwide triumph of the Christian faith. Foremost in the minds of delegates to this meeting was the great advance of Christianity during the nineteenth century. In 1800 less than a fourth of the world's population was identified with Christian churches; by 1900 almost 35 percent were affiliated. It seemed only logical to conclude that the same energy, the same wisdom, and the same trust in God that had brought this great advance would continue on to finish the evangelization of the world.
As it turned out, developments in the twentieth century both confirmed and disconfirmed the expectations of Edinburgh. While the proportion of affiliated Christians has remained steady at roughly one-third of world population, the great population surge of the past century has resulted in a proportionate surge of Christian adherents. The circumstance that would have most surprised delegates to Edinburgh is the location of the world's Christians at the end of the twentieth century. At Edinburgh, only 18 of 1,400 delegates were not from Europe or North America. Not a single black African was in attendance. In 1910, the overwhelming predominance of Europeans and North Americans at a conference on "world Christianity" was not primarily the result of prejudice, since over 80 percent of the world's affiliated Christian population lived in those regions. It was, therefore, only natural to think that the expansion of world Christianity would mean the expansion of Western Christianity into the world.
What actually happened was dramatically different. The surprises as well as the magnitude of developments in the twentieth-century history of Christianity can be illustrated by considering a series of comparisons for present realities as of this past week:
Last Sunday it is probable that more believers attended church in China than in all of so-called Christian Europe.
Last Sunday more Anglicans attended church in each of Kenya, South Africa, Tanzania, and Uganda than did Anglicans in Britain and Episcopalians in the United States combined—and the number of Anglicans at church in Nigeria was several times the number in these other African countries.
Last Sunday more Presbyterians were at church in Ghana than in Scotland, and more were at church in the Uniting Presbyterian Church of Southern Africa than in the United States.
Last Sunday more members of the Assemblies of God in Brazil were in church than the combined total of the Assemblies of God and the Church of God in Christ in the United States.
Last Sunday more people attended the Yoido Full Gospel Church in Seoul (pastor Paul Young-gi Cho) than attended all of the churches in significant American denominations like the Christian Reformed Church, the Evangelical Free Church, or the Presbyterian Church in America.
Last Sunday, Roman Catholics in the United States probably worshipped in more languages than at any previous time in American history.
During the past week, there were more missionaries at work overseas (as a percentage of the nation's affiliated Christian population) from Samoa and Singapore than from Canada and the United States.
Last Sunday the churches with the largest attendance in England and France had mostly black congregations.
If it were possible to summarize the momentous changes in world Christianity over the course of the twentieth century, five themes might emerge: First, the decline of Christianity in Europe, as a result of a steady erosion in Western Europe and the traumatic clash with communism in Eastern Europe. Second, the renovation of the Roman Catholic Church, symbolized by the Second Vatican Council, to reflect both cultural conditions of the modern world and the growing presence of the Two-Thirds World in the Church (which now numbers about 1 billion adherents). Third, the displacement among Protestants of Britain and Germany as the driving agents of Christian expansion by the United States. Fourth, the expansion of Christianity into many regions where the Christian presence had been minimal or nonexistent, including China, Korea, many parts of India, and much of Africa. Fifth, a change in the pressing issues bearing down upon the Christian heartland from the jaded discontents of advanced Western civilization to the raw life-and-death struggles of poverty, disease, and tribal warfare in non-Western civilizations.





